Commit Graph

202687 Commits

Author SHA1 Message Date
Christian Brueffer
703a08b23c The kernel option and module are actually called pmspcv.
MFC after:	3 days
2015-07-30 19:08:23 +00:00
Oleksandr Tymoshenko
40ebf1626f Add GPIO backlight driver compatible with Linux FDT bindings.
Brightness is controlled through sysctl dev.gpiobacklight.X.brightness:
  - any value greater than 0: backlight is on
  - any value less than or equal to  0: backlight is off

FDT bindings docs in Linux tree:
    Documentation/devicetree/bindings/video/backlight/gpio-backlight.txt
2015-07-30 19:04:14 +00:00
Craig Rodrigues
bc81f73771 Get function prototypes for msg, shm, sem functions
from header files.

Differential Revision: D2669
2015-07-30 18:59:01 +00:00
Mark Johnston
e2e45da0e8 ib mad: fix an incorrect use of list_for_each_entry
In tf_dequeue(), if we reach the end of the list without finding a
non-cancelled element, "tmp" will be a pointer into the list head, so the
tmp->canceled check is bogus. Use a flag instead.

Submitted by:	Tao Liu <Tao.Liu@isilon.com>
Reviewed by:	hselasky
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D3244
2015-07-30 18:28:37 +00:00
Konstantin Belousov
6a875bf929 Do not pretend that vm_fault(9) supports unwiring the address. Rename
the VM_FAULT_CHANGE_WIRING flag to VM_FAULT_WIRE.  Assert that the
flag is only passed when faulting on the wired map entry.  Remove the
vm_page_unwire() call, which should be never reachable.

Since VM_FAULT_WIRE flag implies wired map entry, the TRYPAGER() macro
is reduced to the testing of the fs.object having a default pager.
Inline the check.

Suggested and reviewed by:	alc
Tested by:	pho (previous version)
MFC after:	1 week
2015-07-30 18:28:34 +00:00
Craig Rodrigues
2736982e9b Make some variables and functions static. 2015-07-30 18:08:08 +00:00
Allan Jude
91ed97ddd8 Updat the committers graph
Approved by:	marcel (mentor)
Differential Revision:	https://reviews.freebsd.org/D3251
2015-07-30 17:02:23 +00:00
Andrew Turner
8df0053b7a Add enough of pmap_page_set_memattr to run gstat. It still needs to split
the DMAP 1G pages so we set the attributes only on the specified page.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2015-07-30 16:17:44 +00:00
Konstantin Belousov
0b6476ec5b Improve comments.
Submitted by:	bde
MFC after:	2 weeks
2015-07-30 15:47:53 +00:00
Roger Pau Monné
c023d8234b vfs: fill fallout from r286076
This right operator is >= not =>.

Reported by: cem
2015-07-30 15:43:26 +00:00
Roger Pau Monné
8f89a299e2 vfs: fix off-by-one error in vfs_buf_check_mapped
The check added in r285872 can trigger for valid buffers if the buffer space
used happens to be just after unmapped_buf in KVA space.

Discussed with: kib
Sponsored by: Citrix Systems R&D
2015-07-30 15:28:06 +00:00
Pedro F. Giffuni
bc38441579 GCC: Add a new option "-fstack-protector-strong"
This includes additional functions to be protected: those that
have local array definitions, or have references to local frame
addresses. This is a new option in GCC-4.9 that was relicensed
by Han Shen from Google under GPLv2 for OpenBSD.

Obtained from:	OpenBSD (2014-01-14)
MFC after:	2 weeks
2015-07-30 14:31:09 +00:00
Ed Maste
c547d650eb Add ARM64TODO markers to unimplemented functionality
Reviewed by:	andrew
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D2389
2015-07-30 14:20:36 +00:00
Zbigniew Bodek
9028b18f75 Enable IRQ during syscalls on ARM64
FreeBSD provides a feature called Adaptive Mutexes, which allows
a thread to spin for a while when the mutex is taken instead of
immediately going to sleep. This causes issues when called from
syscall handler if interrupts are masked. If every other core
also attempts to access the same mutex there is a chance that
all of them are spinning on the same lock at the same time.
If interrupts are disabled, no kernel preemtion can occur and
the system becomes unresponsive.

This patch enables interrupts when syscall is being executed
and masks them as soon as it is completed.

Reviewed by:   andrew
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3246
2015-07-30 13:59:38 +00:00
Zbigniew Bodek
4d3523c2f7 Remove obsolete vendor code from Alpine platform support
This is a clean-up patch from a serie delivering support for
Annapurna Labs Alpine PoC.
The HAL files have already been added to sys/contrib/alpine-hal
so there is no need for them in the platform directory.
This patch removes obsolete files.

Reviewed by:    andrew
Obtained from:  Semihalf
Sponsored by:   Annapurna Labs
Differential Revision: https://reviews.freebsd.org/D3248
2015-07-30 13:45:34 +00:00
Ed Maste
3fe401a500 Add ELF Tool Chain's ar(1) and elfdump(1) to contrib
ELF Tool Chain built on FreeBSD's ar and elfdump, but has a number of
improvements and enhancements. Bring them into contrib in order to start
integrating into our build.
2015-07-30 12:41:54 +00:00
Andrey V. Elsukov
a5965d1513 Build if_stf(4) module only when both INET and INET6 support are enabled. 2015-07-30 10:26:43 +00:00
Baptiste Daroussin
a86e343db6 Improve strtounum
Fix many style bugs
Better variable naming
Use C99 'restrict' were apropriate
Fix potential errno race

Submitted by:	bde
2015-07-30 06:14:47 +00:00
Colin Percival
a5c1653b5c Disable blkif indirect segment I/Os in EC2 by default due to performance
issues on some EC2 instance types.  Users may want to experiment with
removing this from loader.conf and measuring the performance impact on
the EC2 instances they are using.
2015-07-30 04:01:00 +00:00
Colin Percival
aaebf69062 Add support for Xen blkif indirect segment I/Os. This makes it possible for
the blkfront driver to perform I/Os of up to 2 MB, subject to support from
the blkback to which it is connected and the initiation of such large I/Os
by the rest of the kernel.  In practice, the I/O size is increased from 40 kB
to 128 kB.

The changes to xen/interface/io/blkif.h consist merely of merging updates
from the upstream Xen repository.

In dev/xen/blkfront/block.h we add some convenience macros and structure
fields used for indirect-page I/Os: The device records its negotiated limit
on the number of indirect pages used, while each I/O command structure gains
permanently allocated page(s) for indirect page references and the Xen grant
references for those pages.

In dev/xen/blkfront/blkfront.c we now check in xbd_queue_cb whether a request
is small enough to handle without an indirection page, and either follow the
previous behaviour or use new code for issuing an indirect segment I/O.  In
xbd_connect we read the size of indirect segment I/Os supported by the backend
and select the maximum size we will use; then allocate the pages and Xen grant
references for each I/O command structure.  In xbd_free those grants and pages
are released.

A new loader tunable, hw.xbd.xbd_enable_indirect, can be set to 0 in order to
disable this functionality; it works by pretending that the backend does not
support this feature.  Some backends exhibit a loss of performance with large
I/Os, so users may wish to test with and without this functionality enabled.

Reviewed by:	royger
MFC after:	3 days
Relnotes:	yes
2015-07-30 03:50:01 +00:00
Luiz Otavio O Souza
8b15f615e0 Follow r256586 and rename the kernel version of the Free() macro to
R_Free().  This matches the other macros and reduces the chances to clash
with other headers.

This also fixes the build of radix.c outside of the kernel environment.

Reviewed by:	glebius
2015-07-30 02:09:03 +00:00
Konstantin Belousov
48cae112b5 Use private cache line for the locked nop in *mb() on i386.
Suggested by:	alc
Reviewed by:	alc, bde
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-07-30 00:13:20 +00:00
Konstantin Belousov
dd5b64258f MFamd64 r285934: Remove store/load (= full) barrier from the i386
atomic_load_acq_*().

Noted by:	alc (long time ago)
Reviewed by:	alc, bde
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-07-29 23:59:17 +00:00
John-Mark Gurney
e381fd293d const'ify an arg that we don't update... 2015-07-29 23:37:15 +00:00
Baptiste Daroussin
796ba6fcc2 Cleanup includes 2015-07-29 23:26:14 +00:00
Rick Macklem
25f37276e5 This patch fixes a problem where, if the NFSv4 server has a previous
unconfirmed clientid structure for the same client on the last hash list,
this old entry would not be removed/deleted. I do not think this bug would have
caused serious problems, since the new entry would have been before the old one
on the list. This old entry would have eventually been scavenged/removed.
Detected while reading the code looking for another bug.

MFC after:	3 days
2015-07-29 23:06:30 +00:00
Baptiste Daroussin
c308ef6fd2 Actually set the proper license
Reported by:	trasz
2015-07-29 22:51:54 +00:00
Ed Maste
b43cca137b MK_ELFCOPY_AS_OBJCOPY should be a variable
PR:		201978
Submitted by:	O. Hartmann
Differential Revision:	https://reviews.freebsd.org/D2887
2015-07-29 21:41:15 +00:00
Jim Harris
0e1fd2dda3 nvme: do not notify a consumer about failures that occur during initialization
MFC after:	3 days
Sponsored by:	Intel
2015-07-29 21:29:50 +00:00
Warner Losh
9c80b8aa0f Clarify historical practice of not removing old entries. Add entry for
stable/10 branch that was forgotten when it was created. Update end
date to be correct.
2015-07-29 21:15:50 +00:00
Sean Bruno
e0fe6b4835 Add support for BCM5466 PHY
Differential Revision:	D3232
Submitted by:	kevin.bowling@kev009.com
2015-07-29 20:50:48 +00:00
Sean Bruno
79855a57e2 Remove dead functions pmap_pvdump and pads.
Differential Revision:	D3206
Submitted by:	kevin.bowling@kev009.com
Reviewed by:	alc
2015-07-29 20:47:27 +00:00
Ermal Luçi
3c40232395 Avoid double reference decrement when firewalls force relooping of packets
When firewalls force a reloop of packets and the caller supplied a route the reference to the route might be reduced twice creating issues.
This is especially the scenario when a packet is looped because of operation in the firewall but the new route lookup gives a down route.

Differential Revision:	https://reviews.freebsd.org/D3037
Reviewed by:	gnn
Approved by:	gnn(mentor)
2015-07-29 20:10:36 +00:00
Ed Maste
c67acb7508 Remove mention of non-existent gconv tool
I believe this is a typo of gcov, but gcov is not controlled by
WITHOUT_BINUTILS anyhow.

Sponsored by:	The FreeBSD Foundation
2015-07-29 20:02:20 +00:00
Ed Maste
6974dd6f4b Use default CLANG build options for ARM
We previously disabled CLANG_FULL on (little-endian) ARM because the
build failed.  This is no longer the case and as of Clang 3.5 we cannot
build any part of the in-tree Clang with in-tree GCC, so it's no longer
necessary to disable CLANG_FULL.

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D2525
2015-07-29 19:06:53 +00:00
Ed Maste
5be09b1082 Regenerate src.conf(5) after r286016 and r286030 2015-07-29 18:55:51 +00:00
Ed Maste
5ea9e83e2f Allow ELF Tool Chain elfcopy to be installed as objcopy
ELF Tool Chain elfcopy is nearly a drop-in replacement for GNU objcopy,
but does not currently support PE output which is needed for building
x86 UEFI bits.

Add a src.conf knob to allow installing it as objcopy and set it by
default for aarch64 only, where we don't have a native binutils.

Reviewed by:	bapt
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D2887
2015-07-29 18:45:38 +00:00
Ed Maste
2d83b16bd4 Update OLD_FILES for tools provided by ELF Tool Chain or Binutils
Sponsored by:	The FreeBSD Foundation
2015-07-29 18:33:11 +00:00
Ermal Luçi
d9f2a78249 ip_output normalization and fixes
ip_output has a big chunk of code used to handle special cases with pfil consumers which also forces a reloop on it.
Gather all this code together to make it readable and properly handle the reloop cases.

Some of the issues identified:

M_IP_NEXTHOP is not handled properly in existing code.
route reference leaking is possible with in FIB number change
route flags checking is not consistent in the function

Differential Revision:	https://reviews.freebsd.org/D3022
Reviewed by:	gnn
Approved by:	gnn(mentor)
MFC after:	4 weeks
2015-07-29 18:04:01 +00:00
Patrick Kelsey
4741bfcb57 Revert r265338, r271089 and r271123 as those changes do not handle
non-inline urgent data and introduce an mbuf exhaustion attack vector
similar to FreeBSD-SA-15:15.tcp, but not requiring VNETs.

Address the issue described in FreeBSD-SA-15:15.tcp.

Reviewed by:	glebius
Approved by:	so
Approved by:	jmallett (mentor)
Security:	FreeBSD-SA-15:15.tcp
Sponsored by:	Norse Corp, Inc.
2015-07-29 17:59:13 +00:00
Ed Maste
a80ac30b2d ar: Fix deterministic mode default with options other than -q or -r
Reported by:	jhibbits
Reviewed by:	jhibbits
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3237
2015-07-29 17:34:26 +00:00
Ed Schouten
8328babdd0 Make pipes in CloudABI work.
Summary:
Pipes in CloudABI are unidirectional. The reason for this is that
CloudABI attempts to provide a uniform runtime environment across
different flavours of UNIX.

Instead of implementing a custom pipe that is unidirectional, we can
simply reuse Capsicum permission bits to support this. This is nice,
because CloudABI already attempts to restrict permission bits to
correspond with the operations that apply to a certain file descriptor.

Replace kern_pipe() and kern_pipe2() by a single kern_pipe() that takes
a pair of filecaps. These filecaps are passed to the newly introduced
falloc_caps() function that creates the descriptors with rights in
place.

Test Plan:
CloudABI pipes seem to be created with proper rights in place:

https://github.com/NuxiNL/cloudlibc/blob/master/src/libc/unistd/pipe_test.c#L44

Reviewers: jilles, mjg

Reviewed By: mjg

Subscribers: imp

Differential Revision: https://reviews.freebsd.org/D3236
2015-07-29 17:18:27 +00:00
Ed Schouten
e555b4309c Introduce falloc_caps() to create descriptors with capabilties in place.
falloc_noinstall() followed by finstall() allows you to create and
install file descriptors with custom capabilities. Add falloc_caps()
that can do both of these actions in one go.

This will be used by CloudABI to create pipes with custom capabilities.

Reviewed by:	mjg
2015-07-29 17:16:53 +00:00
Christian Brueffer
8843746ab4 Remove the AUTHORS section until it's clear who exactly wrote the driver. 2015-07-29 16:37:36 +00:00
Ed Maste
8cdcc73cfa Include c++filt and readelf in WITHOUT_ELFTOOLCHAIN_TOOLS 2015-07-29 15:42:22 +00:00
Sean Bruno
1f6aae90ad Make Broadcom XLR use shared ds1374 RTC driver.
Remove its identical and redundant ds1374u version.

Differential Revision:	D3225
Submitted by:	kevin.bowling@kev009.com
2015-07-29 15:32:59 +00:00
Andrey V. Elsukov
10a0e0bf0a Eliminate the use of m_copydata() in gif_encapcheck().
ip_encap already has inspected mbuf's data, at least an IP header.
And it is safe to use mtod() and do direct access to needed fields.
Add M_ASSERTPKTHDR() to gif_encapcheck(), since the code expects that
mbuf has a packet header.
Move the code from gif_validate[46] into in[6]_gif_encapcheck(), also
remove "martian filters" checks. According to RFC 4213 it is enough to
verify that the source address is the address of the encapsulator, as
configured on the decapsulator.

Reviewed by:	melifaro
Obtained from:	Yandex LLC
Sponsored by:	Yandex LLC
2015-07-29 14:07:43 +00:00
Sergey Kandaurov
4446a47a6f Fixed shutdown(2) unix(4) tests for SOCK_SEQPACKET after r285910 (by ed). 2015-07-29 13:49:34 +00:00
Ed Maste
fc964cbf4e ar: enable deterministic mode by default
Ar cannot handle UIDs with more than 6 digits, and storing the mtime,
uid, gid and mode provides little to negative value anyhow for ar's
uses. Turn on deterministic (-D) mode by default; it can be disabled by
the user with -U.

PR:		196929
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3190
2015-07-29 13:36:17 +00:00
Ed Schouten
9d2332c9ee Split up Capsicum to CloudABI rights conversion into two separate routines.
CloudABI's openat() ensures that files are opened with the smallest set
of relevant rights. For example, when opening a FIFO, unrelated rights
like CAP_RECV are automatically removed. To remove unrelated rights, we
can just reuse the code for this that was already present in the rights
conversion function.
2015-07-29 12:42:45 +00:00